Balcony Solar in Utah: Laws, Limits, and Solar Yield (2026)

Everything you need to know about plug-in balcony solar in Utah: legal status, tracked bills, statutory wattage limits, utility interconnection rules, and expected monthly solar production.

Legislation Summary

Status: Balcony solar legal
Wattage allowed: 1200 W AC
Wattage tiers: Single 1200 W AC limit
HOA / Condo Protections: Not yet verified
Plug-in Battery Storage: Not yet verified
Renters & Tenant Rights: Not yet verified
Permit & Electrician DIY Status: Not yet verified
Utility Interconnection: Not yet verified
Bill: HB 340 - Solar Power Amendments
Date passed: March 25, 2025
Date effective: May 7, 2025

Legal Status: Can You Plug In Solar in Utah?

Current Disposition: Balcony solar legal

Utah HB 340 (2025 General Session), titled Solar Power Amendments, was signed by the Governor on March 25, 2025 and took effect May 7, 2025. It amends Utah Code 54-15-102 to define a portable solar generation device: a moveable photovoltaic device with a maximum power output of not more than 1,200 watts, designed to connect through a standard 120-volt AC outlet. It enacts Utah Code 54-15-601, which exempts these devices from utility interconnection requirements and agreements, prior approval, fees and net-metering program requirements.

Statutory Capacity Limit

Authorized power: 1200W (Portable solar generation device with a maximum power output of not more than 1,200 W, on a standard 120-volt AC outlet). Exempt from interconnection requirements and from any requirement to enter an interconnection agreement; no utility approval, fee or extra equipment; outside the net-metering program

Utah HB 340 (2025) - Solar Power Amendments (bill page)

Utah Code § 54-15-601 exempts portable solar from net metering program requirements while strictly prohibiting utilities from charging fees or requiring extra equipment.

Consumer Action: Because portable solar is not subject to net metering in Utah, surplus energy exported to the grid receives no billing credit. Check with Rocky Mountain Power or your municipal utility to verify your meter does not treat backfeed as consumption. Under state statute, electrical corporations cannot require prior approval, charge fees, or require extra controls.

Statutory Export Rule: “is not subject to the net metering program requirements under this chapter.”

Utility Fee Prohibition: “An electrical corporation: (a) may not require a customer using a portable solar generation device to: (i) obtain the electrical corporation's approval before installing or using the system; (ii) pay any fee or charge related to the system; or (iii) install any additional controls or equipment beyond what is integrated into the system”

Utah Code § 54-15-601(1)(b), (3)(a) -- Official Source Text

Tracked Legislation in Utah

HB 340 house Enacted

Solar Power Amendments

Latest Action: March 25, 2025

Primary Source | Wayback Archive

Estimated Solar Energy Production in Utah

How much electricity will a standard plug-in solar kit produce on a balcony or patio in Utah? Below are monthly estimates based on local insolation levels:

Standard 400W Kit ~697 kWh Estimated annual electricity production

Dual-Panel 800W Kit ~1397 kWh Estimated annual electricity production

Month	Daily Peak Sun Hours	400W Kit (1 Panel)	800W Kit (2 Panels)
Jan	3.9 hrs	42 kWh	83 kWh
Feb	4.7 hrs	45 kWh	91 kWh
Mar	5.5 hrs	59 kWh	117 kWh
Apr	6.1 hrs	63 kWh	126 kWh
May	6.3 hrs	67 kWh	134 kWh
Jun	6.7 hrs	69 kWh	138 kWh
Jul	6.6 hrs	70 kWh	141 kWh
Aug	6.6 hrs	70 kWh	141 kWh
Sep	6.6 hrs	68 kWh	136 kWh
Oct	5.8 hrs	62 kWh	124 kWh
Nov	4.3 hrs	44 kWh	89 kWh
Dec	3.6 hrs	38 kWh	77 kWh
Annual Total	--	~697 kWh	~1397 kWh

Estimates derived from historical National Renewable Energy Laboratory (NREL NSRDB) solar radiation averages across weather stations in Utah, modeling an 86% system performance ratio.

Calculate Your Exact Bill Savings

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Local Solar Permitting Streamlining in Utah

While balcony solar kits are designed for plug-in operation, municipal permitting processes indicate solar-friendly administrative environments:

0 SolarAPP+ Jurisdictions Municipalities with automated, instant online rooftop & storage permits.

4 SolSmart Communities Cities and counties recognized for removing red tape and barriers to solar growth.

Incentives, Solar Rights & Grid Barriers

State Incentives & Solar Rights

Portable solar devices up to 1,200 W exempt from interconnection requirements (Utah Code 54-15-601)
Utilities prohibited from requiring prior approval or charging related fees
Utilities may not mandate additional controls or equipment beyond what is integrated into the device
Electrical corporations are not liable for damage or injury caused by a portable solar generation device (Utah Code 54-15-601(3)(b))

Utility Barriers & Interconnection Rules

Maximum 1,200 watt output per device
Must connect via standard 120-volt AC outlet
Must include a feature preventing the device from energizing the building during a power outage (anti-islanding)
Device must meet the most recent National Electrical Code and be certified by Underwriters Laboratories or an equivalent nationally recognized testing laboratory (Utah Code 54-15-102)

Official Utah Energy Resources

Utah HB 340 (2025) - Solar Power Amendments (bill page) (primary)
Utah Code 54-15-601 as enacted by HB 340 (PDF) (primary)
DSIRE Utah (secondary)

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